https://quartz.jzhao.xyz/abel-transformation 2026-05-07T05:00:39.000Z https://quartz.jzhao.xyz/ 2026-05-07T05:00:39.000Z https://quartz.jzhao.xyz/%E9%9A%90%E5%87%BD%E6%95%B0%E5%AE%9A%E7%90%86%E7%9A%84%E8%AF%81%E6%98%8E 2026-05-07T05:00:39.000Z